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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1293946Generated: October 30, 2026

5-Bromo-2-thiophenesulfonamide → 5-[6-(4-Trifluoromethyl-phenyl)-imidazo[1,2-a]pyridin-3-ylethynyl]-thiophene-2-sulfonic acid amide

https://huagongshe.com/reaction/1293946

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-2-thiophenesulfonamideHCID 1241304—
Reactant3-Ethynyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridineHCID 86608099—
Product5-[6-(4-Trifluoromethyl-phenyl)-imidazo[1,2-a]pyridin-3-ylethynyl]-thiophene-2-sulfonic acid amideHCID 16735281—

Reaction Steps

The title compound was prepared from 3-ethynyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridine (example C.24) (400 mg, 1.3 mmol) and commercially available 5-bromothiophene-2-sulfonamide (338 mg, 1.3 mmol) according to general procedure II. Obtained as a white solid (90 mg, 14%). MS (ISP) 448.1 [(M+H)+]; mp 206–210° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07238808B2
Source datasetuspto-grants-2007_07
ORD IDord-ef80ba45cd1b4a8c8b109a4cc1770bb6
Source noteuspto-grants-2007_07